“MongoDB Buat indeks JSON” Kode Jawaban

bagaimana membuat indeks mongodb

db.collection.createIndex({age:1}) //single field asc index on age field
db.collection.createIndex({firstName:1,lastName:-1})//compound index on firstName asc and lastName desc
db.collection.createIndex({locations:1}) //given locations is an array then a multikey index will be created

Kirk-Patrick Brown

Buat indeks di MongoDB

> db.col1.save({'colors': ['red','blue']})
> db.col1.ensureIndex({'colors':1})

> db.col1.find({'colors': 'red'})
{ "_id" : ObjectId("4ccc78f97cf9bdc2a2e54ee9"), "colors" : [ "red", "blue" ] }
> db.col1.find({'colors': 'blue'})
{ "_id" : ObjectId("4ccc78f97cf9bdc2a2e54ee9"), "colors" : [ "red", "blue" ] }

Careful Chamois

MongoDB Buat indeks JSON

{
	"v": 1,
	"unique": false,
	"key": {
		"name": 1
	},
	"name": "name_1",
	"ns": "test.users",
	"background": true
}

Vishal

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